Safety appliance for gas-valves.



M. J. SLUUS.

SAFETY APPLIANCE FOR GAS VALVES.

APPLICATION FILED APR.24. 1912.

Patented Feb. 2, 1915.v

WITNESSES THE NORRIS PETERS C0,, FHOTO-LITHQ. WASHINGTON, D, C

MATHIS J. SLUU'S, OF E-LMWOOD, CONNECTICUT;

SAFETY APPLIANCE FOR GAS-VALVES.

Specification of Letters Patent.

Patented Feb. 2, 1915.

Application filed April 24, 1912. Serial No. 692,948.

To (ZZZ whom it may concern lie it known that I, MA'rHIs J. SLUUs, acitizen of the United States, residing at; l llmwood, in the county ofHartford and State of Connecticut, have invented new and usefulImprovements in Safety Appliances for Gas-Valves, of which the followingis a specification.

This invention relates to a safety device 'for gas valves, and theobjects of the same are, to provide an appliance of the above naturewhich can be readily attached or detached to or from an ordinary gasjet, one which aii'ords facilities for obtaining proper adjustment ofthe locking member, to provide means tfoi'holding the locking membersecurely in place and one which consists of but a few simple partswhereby it may be easily manufactured and placed upon the market at avery small cost.

l'Vith the above and other objects in view, my invention relates to suchdetails of construction and in the arrangement and combination of theseveral parts as will be hereinafter described and specifically pointedout in the appended claims.

hen describing my invention in detail, reference will be had to theaccompanying drawings wherein like characters denote like orcorresponding parts throughout the several views, and in which,

Figure l is a side elevation of my invention, however parts of the samehave been I shown in section. Fig. 2 is a perspective view of myinvention. Fig. 3 is an end view of the same.

In the accompanying drawings wherein is illustrated the preferred formof my'invention, the numeral 1 designates an ordinary gas jet, which gasjet is provided with the ordinary supporting structureQ for the tip Theabove mentioned structure is well known in this art, and I desire it tobe understood that I do not make any claim in regard to this. I

The jet is controlled by a valve 4, which is of the ordinary turningplug type, and which is adjusted through the medium of a set screw 5 andoperated by a handle 6, as is obvious. For the purpose of limiting therotation of the valve a nut 7 is provided upon the jet, which nut has ashoulder 8 formed thereon, against which abuts a pin 9 which is carriedby the stem of the valve.

My invention comprises the plates 10 and 10' which are mounted upon arod 11, one

' substantially parallel being held fast thereto, while the other isslidably mounted thereon through the medium of the means hereinafter setforth. A collar is provided, which consists of the sections 12 and 13,which sections are secured'together by the pins 14, and have dependingtherefrom, fingers'l5, as shown. The stationary plate 10 has engagementwith the fingers above mentioned and is held in place through the mediumof the members 16, said members 16 being of any adaptable form. Thecollar is adapted to be secured to the jet, as shown in Fig. 1, therebyholding the rod 11, parallel with the same and permitting the slidableplate 10 to be moved into or out of engagement with the handle 6 of thevalve.

F or the purpose of holding the'slidable plate 10 rigid at diiferentpositions upon the rod 11, the said rod is provided with longitudinallyextending grooves 17 into which projects a pawl 18, which pawl iscarried by slide 19, the said slide being mounted within the guide .way20 upon the slidable plate 10. The slide is held in its lowermostposition and the pawl in engagement with the groove through the mediumof an elastic member 21, which member is of any suitable form, a coilspring having been shown in the drawings.

It is readily obvious that the slide may be moved so as to abut thehandle of the valve in such a manner as to prevent the accidentalrotation of the same, and hence the escape of the gas from the jet.

I desire to lay the greatest of stress upon the simplicity of myinvention, and it is thought that the advantages and novel fea tures ofthe same will be readily appreciated from the foregoing disclosure.

I desire it to be understood that I may make slight changes in theconstruction and in the arrangements and combination of the severalparts, provided such changes fall within the scope of the sub-joinedclaims. 7

Having thus fully described my invention, what I desire to secure byLetters Patent 1s:

1. In combination, a conduit pipe, a valve in said pipe having its stemprovided with an operating head, a collar adj ustably mounted upon saidcone uit pipe, supporting strips carried by said collar, a plate carriedby said strips, a rod extending from said plate to said pipe andprovided with a longitudinally extending slot,

an adjustable plate slidably mounted upon said rod, guides carried bysaid adjustable plate, a plunger slidably mounted in said guides andprovided With a tooth for fitting 5 into said slot to prevent saidadjustable plate from rotating upon said rod, and a spring carried bysaid adjustable plate and engaging said plunger to normally hold saidtooth in said slot whereby said plate may be held in an adjustedposition upon said rod for engaging the operating head of the valve stemand to prevent rotation of the adjustable plate.

2. A device of the character described 15 comprising an attachingcollar, arms ex- Copies of this patent may be obtained for tending fromsaid collar, a plate carried by said arms, a rod extending from saidplate and provided With a longitudinally extending groove, an adjustableplate slidably mounted upon said rod, a plunger slidably connected withsaid adjustable plate and provided With a tooth for fitting into saidgroove, and a spring carried by said adjustable plate for normallyholding said tooth in said groove whereby said adjustable plate may beheld in an adjusted position.

MATHIS J. SLUUS; lVitnesses:

CHARLES L. RoBER'rs, W. J. MGKEAN.

five cents each, by addressing the Commissioner of .Patents,

Washington, D. C.

